TY  - BOOK
AU  - Knapper, Christopher Kay
TI  - Evaluating instructional technology
SN  - 0856649287
U1  - 371.3 
PY  - 1980///
CY  - London
PB  - ; Croom Helm
KW  - Education
KW  - Instructions
KW  - Mathod Of Instruction
ER  -